/*
 * Copyright 2009 Nordic Consulting & Development Company
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package pl.ncdc.web.login.client;

import pl.ncdc.web.login.client.service.AuthenticationResult;
import pl.ncdc.web.login.client.service.AuthenticationServiceAsync;
import pl.ncdc.web.login.client.service.UserServiceAsync;
import pl.ncdc.web.login.client.ui.AuthenticationListener;
import pl.ncdc.web.login.client.ui.LoginWidget;

import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.RootPanel;

/**
 *
 * <p>
 * Created on Jan 28, 2009
 *
 * @author hshsce
 * @version $Id: AbstractLoginApp.java 204 2009-06-03 15:34:41Z hshsce $
 */
public abstract class AbstractLoginApp implements EntryPoint {

	private LoginConfiguration m_configuration;

	/** {@inheritDoc}. */
	public void onModuleLoad() {
		final LoginConfiguration c = getConfiguration();
		final AuthenticationServiceAsync authService = newAuthenticationService();
		final UserServiceAsync userService = newUserService();
		final LoginWidget loginWidget = new LoginWidget(c.getTitle(), c.getImagePath(), c.getImageExtension(), authService, userService);
		loginWidget.addAuthenticationListener(new AuthenticationListener() {
			public void onAuthenticationResponse(final String uid, final AuthenticationResult result) {
				if (result == AuthenticationResult.OK) {
					Window.open(c.getRedirectUrl(), "_self", "");
				}
			}
		});
		RootPanel.get(LoginWidget.WIDGET_ID).add(loginWidget);
	}

	public LoginConfiguration getConfiguration() {
		if (m_configuration == null) {
			m_configuration = new LoginConfiguration();
		}
		return m_configuration;
	}

	protected abstract UserServiceAsync newUserService();

	protected abstract AuthenticationServiceAsync newAuthenticationService();

}
